Free-space optical (FSO) communication is widely used in satellites, ships, aircraft, and
ground stations due to its advantages of high speed, large capacity, good confidentiality …

The quadrant detector (QD), has developed into a core detector in the free space optical
communication system. The light power received by the detector surface will be very weak …

In this paper, we propose a new polynomial fitting algorithm to improve the spot position
detection accuracy based on four-Quadrant Detector (4QD) when the circular spot with …

针对应用APD 电路的脉冲激光探测系统而言, 现有的峰值提取方法只能检测线性区的不饱和
波形, 而无法检测非线性区的饱和波形, 这导致系统的检测范围极其受限, 因此 …

This paper proposes a design of strapdown laser guided seeker with large linear view field,
low circuit noise and high precision algorithm. Simulation experiments show that the linear …

The design of a four-quadrant detector for the semi-active laser seeker on the guided gun-
launched projectile was studied. Several key parameters of the four-quadrant detector …

The spot position detection technology based on the four-quadrant detector plays an
important role in fields such as laser semi-active guidance, space laser communication …

In recent decades, laser detection technology has been widely applied in various fields. As
one of the important components of precision guided weapons, laser guided bomb is …